Produkter från kemisk industri

Kommittébeteckning: SIS/TK 289 (Gassystem)
Källa: CEN
Svarsdatum: den 7 apr 2020
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This European Standard defines the minimum requirements to ensure the interoperability of public hydrogen refuelling points including refuelling protocols that dispense gaseous hydrogen to road vehicles (e.g. Fuel Cell Electric Vehicles).

The safety and performance requirements for the entire hydrogen refuelling station (HRS), addressed in accordance with existing relevant European and National legislation, are not included in this European Standard.

NOTE Guidance on considerations for hydrogen refuelling stations (HRS) is provided in ISO/TS 19880-1.

Ämnesområden: Eteriska oljor
Kommittébeteckning: SIS/TK 495 (Kosmetik samt analysmetoder för allergener)
Källa: CEN
Svarsdatum: den 5 maj 2020
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The present method permits the identification and quantification of the volatile compounds suspected as allergens, which are present in the fragrance compounds and raw materials used in cosmetic products. The analysis is performed by gas chromatography and mass spectrometry (GC-MS) on matrix samples which are "ready to be injected" and which are compatible with gas chromatography.

The analytes covered by this procedure are based on the contents of Tables 13.1 and 13.2 in the SCCS 1459/11 opinion document (1) and as listed in the legislation proposed by the European Commission. The rationale behind the final choice of procedure analytes is given in the table found in Annex J.

The method was validated at IFRA and CEN level with two solvents, namely methyl pivalate and tert-methyl butyl ether.

Many of the Allergens in the SCCS ‘Opinion’ documentation submitted to the EU Commission consist of multiple isomers of the same molecules and/or complex mixtures.

In many cases, this complexity can be resolved by this Procedure but that leaves a number of target analytes where this isn’t the case.

In addition, the SCCS Opinion also documents a number of CAS Numbers related to the same parent molecule. These are related to the optically active forms of the similar parent structure. For this procedure, the optically active forms are not considered as these require special (and in some cases, very different) GC phases to achieve the required separation.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 1 jun 2020
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This document is applicable to calcium carbonate used for treatment of water intended for human consumption. It describes the characteristics of calcium carbonate and specifies the requirements and the corresponding test methods for calcium carbonate. It gives information on its use in water treatment.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 8 jun 2020
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This document is applicable to iron (III) sulfate solid used for treatment of water intended for human consumption. It describes the characteristics of iron (III) sulfate solid and specifies the requirements and the corresponding analytical methods for iron (III) sulfate solid and gives information on its use in water treatment. It also determines the rules relating to safe handling and use of iron (III) sulfate solid.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 8 jun 2020
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This document is applicable to iron (III) chloride (a), iron (III) chloride hexahydrate (b), iron (III) chloride solution (c) used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding analytical methods for iron (III) chlorides (a), (b) and (c) and gives information for their use in water treatment.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 8 jun 2020
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This document is applicable to iron (II) sulfate heptahydrate and iron (II) sulfate monohydrate used for treatment of water intended for human consumption. It describes the characteristics of iron (II) sulfate heptahydrate and monohydrate, specifies the requirements and the corresponding analytical methods and gives information on their use in water treatment.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 8 jun 2020
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This document is applicable to iron (III) sulfate solution of various iron and/or acid contents (see 4.2) used for treatment of water intended for human consumption. It describes the characteristics of iron (III) sulfate solution and specifies the requirements and the corresponding analytical methods for iron (III) sulfate solution and gives information on its use in water treatment. It also determines the rules relating to safe handling and use of iron (III) sulfate solution.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 8 jun 2020
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This document is applicable to iron (III) chloride sulfate used for treatment of water intended for human consumption. It describes the characteristics of iron (III) sulfate and specifies the requirements and the corresponding analytical methods for iron (III) chloride sulfate and gives information on its use in water treatment. It also determines the rules relating to safe handling and use of iron (III) chloride sulfate.